Ejemplo n.º 1
0
/** Task to manage an enumerated USB Still Image device once connected, to manage a
 *  new PIMA session in order to send commands to the attached device.
 */
void StillImageHost_Task(void)
{
	if (USB_HostState != HOST_STATE_Configured)
	  return;

	puts_P(PSTR("Opening Session...\r\n"));

	if (SI_Host_OpenSession(&DigitalCamera_SI_Interface) != PIPE_RWSTREAM_NoError)
	{
		puts_P(PSTR("Could not open PIMA session.\r\n"));
		USB_Host_SetDeviceConfiguration(0);
		return;
	}

	puts_P(PSTR("Turning off Device...\r\n"));

	SI_Host_SendCommand(&DigitalCamera_SI_Interface, 0x1013, 0, NULL);
	if (SI_Host_ReceiveResponse(&DigitalCamera_SI_Interface))
	{
		puts_P(PSTR("Could not turn off device.\r\n"));
		USB_Host_SetDeviceConfiguration(0);
		return;
	}

	puts_P(PSTR("Device Off.\r\n"));

	puts_P(PSTR("Closing Session...\r\n"));

	if (SI_Host_CloseSession(&DigitalCamera_SI_Interface) != PIPE_RWSTREAM_NoError)
	{
		puts_P(PSTR("Could not close PIMA session.\r\n"));
		USB_Host_SetDeviceConfiguration(0);
		return;
	}

	LEDs_SetAllLEDs(LEDMASK_USB_READY);
	USB_Host_SetDeviceConfiguration(0);
}
Ejemplo n.º 2
0
/** Main program entry point. This routine configures the hardware required by the application, then
 *  enters a loop to run the application tasks in sequence.
 */
int main(void)
{
	SetupHardware();

	puts_P(PSTR(ESC_FG_CYAN "Still Image Host Demo running.\r\n" ESC_FG_WHITE));

	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
	sei();

	for (;;)
	{
		switch (USB_HostState)
		{
			case HOST_STATE_Addressed:
				LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);

				uint16_t ConfigDescriptorSize;
				uint8_t  ConfigDescriptorData[512];

				if (USB_Host_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData,
				                                       sizeof(ConfigDescriptorData)) != HOST_GETCONFIG_Successful)
				{
					puts_P(PSTR("Error Retrieving Configuration Descriptor.\r\n"));
					LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
					USB_HostState = HOST_STATE_WaitForDeviceRemoval;
					break;
				}

				if (SI_Host_ConfigurePipes(&DigitalCamera_SI_Interface,
				                           ConfigDescriptorSize, ConfigDescriptorData) != SI_ENUMERROR_NoError)
				{
					puts_P(PSTR("Attached Device Not a Valid Still Image Class Device.\r\n"));
					LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
					USB_HostState = HOST_STATE_WaitForDeviceRemoval;
					break;
				}

				if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
				{
					puts_P(PSTR("Error Setting Device Configuration.\r\n"));
					LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
					USB_HostState = HOST_STATE_WaitForDeviceRemoval;
					break;
				}

				puts_P(PSTR("Still Image Device Enumerated.\r\n"));
				LEDs_SetAllLEDs(LEDMASK_USB_READY);
				USB_HostState = HOST_STATE_Configured;
				break;
			case HOST_STATE_Configured:
				puts_P(PSTR("Opening Session...\r\n"));

				if (SI_Host_OpenSession(&DigitalCamera_SI_Interface) != PIPE_RWSTREAM_NoError)
				{
					puts_P(PSTR("Could not open PIMA session.\r\n"));
					USB_HostState = HOST_STATE_WaitForDeviceRemoval;
					break;
				}

				puts_P(PSTR("Turning off Device...\r\n"));

				SI_Host_SendCommand(&DigitalCamera_SI_Interface, 0x1013, 0, NULL);
				if (SI_Host_ReceiveResponse(&DigitalCamera_SI_Interface))
				{
					puts_P(PSTR("Could not turn off device.\r\n"));
					USB_HostState = HOST_STATE_WaitForDeviceRemoval;
					break;
				}

				puts_P(PSTR("Device Off.\r\n"));

				puts_P(PSTR("Closing Session...\r\n"));

				if (SI_Host_CloseSession(&DigitalCamera_SI_Interface) != PIPE_RWSTREAM_NoError)
				{
					puts_P(PSTR("Could not close PIMA session.\r\n"));
					USB_HostState = HOST_STATE_WaitForDeviceRemoval;
					break;
				}

				LEDs_SetAllLEDs(LEDMASK_USB_READY);
				USB_HostState = HOST_STATE_WaitForDeviceRemoval;
				break;
		}

		SI_Host_USBTask(&DigitalCamera_SI_Interface);
		USB_USBTask();
	}
}